LB8503V Datasheet, PDF (1/20 Pages) Sanyo Semicon Device – Monolithic Digital IC DC Fan Motor Speed Control IC

Ordering number : ENA0366
LB8503V
Monolithic Digital IC
DC Fan Motor Speed
Control IC
http://onsemi.com
Overview
The LB8503V is an improved functionality version of the LB8500 and LB8502 products that features the added
functions listed below. The LB8503V supports both single-phase and three-phase applications.
Added Functions
• Supports origin shifting in the speed control function
• Adds a dedicated pin for setting the soft start time
This allows a longer start time to be set without reducing the response time when changing speed.
• FG output pin added
Functions and Features
• Achieves linear speed control
Applications can set the slope of the change in motor speed with change in the input duty.
• Minimized speed fluctuations in the presence of line or load variations
• Allows a minimum speed to be set
• Soft start function
• Settings using external capacitors and resistors (to support easier mass production of end products)
• Supports both PWM duty and analog voltage control inputs
Semiconductor Components Industries, LLC, 2013
May, 2013
31407 TI PC 20060207-S00003 No.A0366-1/20